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Reference Guide
TTreeViewer Class Reference

A graphic user interface designed to handle ROOT trees and to take advantage of TTree class features.

It uses ROOT native GUI widgets adapted for "drag and drop" functionality. in the same session.

The following capabilities are making the viewer a helpful tool for analysis:

  • several trees may be opened in the same session;
  • branches and leaves can be easily browsed or scanned;
  • fast drawing of branch expressions by double-clicking;
  • new variables/selections easy to compose with the built-in editor;
  • histograms can be composed by dragging leaves or user-defined expressions to X, Y and Z axis items;
  • the tree entries to be processed can be selected with a double slider;
  • selections can be defined and activated by dragging them to the 'Cut' item;
  • all expressions can be aliased and aliases can be used in composing others;
  • input/output event lists easy to handle;
  • menu with histogram drawing options;
  • user commands may be executed within the viewer and the current command can be echoed;
  • current 'Draw' event loop is reflected by a progress bar and may be interrupted by the user;
  • all widgets have self-explaining tool tips and/or context menus;
  • expressions/leaves can be dragged to a 'scan box' and scanned by double-clicking this item. The result can be redirected to an ASCII file;

The layout has the following items:

  • a menu bar with entries : File, Edit, Run, Options and Help;
  • a toolbar in the upper part where you can issue user commands, change the drawing option and the histogram name, three check buttons Hist, Rec and Scan.HIST toggles histogram drawing mode, REC enables recording of the last command issued and SCAN enables redirecting of TTree::Scan command in an ASCII file (see -Scanning expressions-);
  • a button bar in the lower part with : buttons DRAW/STOP that issue histogram drawing and stop the current command respectively, two text widgets where input and output event lists can be specified, a message box and a RESET button on the right that clear edited expression content (see Editing...)
  • a tree-type list on the main left panel where you can select among trees or branches. The tree/branch will be detailed in the right panel. Mapped trees are provided with context menus, activated by right-clicking;
  • a view-type list on the right panel. The first column contain X, Y and Z expression items, an optional cut and ten optional editable expressions. Expressions and leaf-type items can be dragged or deleted. A right click on the list-box or item activates context menus.

Opening a new tree and saving a session :

To open a new tree in the viewer use <File/Open tree file> menu The content of the file (keys) will be listed. Use <SetTreeName> function from the context menu of the right panel, entering a tree name among those listed.

To save the current session, use <File/Save> menu or the <SaveSource> function from the context menu of the right panel (to specify the name of the file - name.C)

To open a previously saved session for the tree MyTree, first open MyTree in the browser, then use <File/Open session> menu.

Dragging items:

Items that can be dragged from the list in the right : expressions and leaves. Dragging an item and dropping to another will copy the content of first to the last (leaf->expression, expression->expression). Items far to the right side of the list can be easily dragged to the left (where expressions are placed) by dragging them to the left at least 10 pixels.

Editing expressions:

Any editable expression from the right panel has two components : a true name (that will be used when TTree::Draw() commands are issued) and an alias. The visible name is the alias. Aliases of user defined expressions have a leading ~ and may be used in new expressions. Expressions containing boolean operators have a specific icon and may be dragged to the active cut (scissors item) position.

The expression editor can be activated by double-clicking empty expression, using <EditExpression> from the selected expression context menu or using <Edit/Expression> menu.

The editor will pop-up in the left part, but it can be moved. The editor usage is the following :

  • you can write C expressions made of leaf names by hand or you can insert any item from the right panel by clicking on it (recommandable);
  • you can click on other expressions/leaves to paste them in the editor;
  • you should write the item alias by hand since it not only make the expression meaningful, but it also highly improve the layout for big expressions
  • you may redefine an old alias - the other expressions depending on it will be modified accordingly. An alias must not be the leading string of other aliases. When Draw commands are issued, the name of the corresponding histogram axes will become the aliases of the expressions.

User commands can be issued directly from the textbox labeled "Command" from the upper-left toolbar by typing and pressing Enter at the end.

Another way is from the right panel context menu : ExecuteCommand. All commands can be interrupted at any time by pressing the STOP button from the bottom-left You can toggle recording of the current command in the history file by checking the Rec button from the top-right

Context menus

You can activate context menus by right-clicking on items or inside the right panel.

Context menus for mapped items from the left tree-type list : The items from the left that are provided with context menus are tree and branch items. You can directly activate the MENU marked methods of TTree from this menu.

Context menu for the right panel:

A general context menu is activated if the user right-clicks the right panel.

Commands are :

  • EmptyAll : clears the content of all expressions;
  • ExecuteCommand : execute a ROOT command;
  • MakeSelector : equivalent of TTree::MakeSelector();
  • NewExpression : add an expression item in the right panel;
  • Process : equivalent of TTree::Process();
  • SaveSource : save the current session as a C++ macro;
  • SetScanFileName : define a name for the file where TTree::Scan command is redirected when the <Scan> button is checked;
  • SetTreeName : open a new tree with this name in the viewer;

A specific context menu is activated if expressions/leaves are right-clicked.

Commands are :

  • Draw : draw a histogram for this item;
  • EditExpression : pops-up the expression editor;
  • Empty : empty the name and alias of this item;
  • RemoveItem : removes clicked item from the list;
  • Scan : scan this expression;
  • SetExpression : edit name and alias for this item by hand;

Starting the viewer

  1. From the TBrowser: Select a tree in the TBrowser, then call the StartViewer() method from its context menu (right-click on the tree).
  2. From the command line: Start a ROOT session in the directory where you have your tree. You will need first to load the library for TTreeViewer and optionally other libraries for user defined classes (you can do this later in the session) :
    root [0] gSystem->Load(\"TTreeViewer\");

Supposing you have the tree MyTree in the file MyFile, you can do :

root [1] TFile file("Myfile");
root [2] new TTreeViewer("Mytree");

or :

root [2] TTreeViewer *tv = new TTreeViewer();
root [3] tv->SetTreeName("Mytree");

Definition at line 54 of file TTreeViewer.h.

Public Types

enum  EListItemType {
  kLTNoType = 0, kLTPackType = BIT(0), kLTTreeType = BIT(1), kLTBranchType = BIT(2),
  kLTLeafType = BIT(3), kLTActionType = BIT(4), kLTDragType = BIT(5), kLTExpressionType = BIT(6),
  kLTCutType = BIT(7)
}
 Item types used as user data. More...
 
- Public Types inherited from TGWindow
enum  EEditMode {
  kEditEnable = 0, kEditDisable = BIT(0), kEditDisableEvents = BIT(1), kEditDisableGrab = BIT(2),
  kEditDisableLayout = BIT(3), kEditDisableResize = BIT(4), kEditDisableHeight = BIT(5), kEditDisableWidth = BIT(6),
  kEditDisableBtnEnable = BIT(7), kEditDisableKeyEnable = BIT(8)
}
 
enum  EStatusBits { kIsHtmlView = BIT(14) }
 
- Public Types inherited from TObject
enum  {
  kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kInconsistent = 0x08000000,
  kBitMask = 0x00ffffff
}
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5),
  kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 

Public Member Functions

 TTreeViewer (const char *treeName=0)
 TTreeViewer default constructor. More...
 
 TTreeViewer (const TTree *tree)
 
virtual ~TTreeViewer ()
 TTreeViewer destructor. More...
 
void ActivateButtons (Bool_t first, Bool_t previous, Bool_t next, Bool_t last)
 Enable/disable session buttons. More...
 
void AppendTree (TTree *tree)
 Allow geting the tree from the context menu. More...
 
virtual void CloseWindow ()
 Close the viewer. More...
 
virtual void Delete (Option_t *)
 Delete this object. More...
 
void DoRefresh ()
 This slot is called when button REFR is clicked. More...
 
void EditExpression ()
 Start the expression editor. More...
 
void Empty ()
 Empty the content of the selected expression. More...
 
void EmptyAll ()
 Clear the content of all items in the list view. More...
 
void ExecuteCommand (const char *command, Bool_t fast=kFALSE)
 Execute all user commands. More...
 
void ExecuteDraw ()
 Called when the DRAW button is executed. More...
 
void ExecuteSpider ()
 Draw a spider plot for the selected entries. More...
 
TTVLVEntryExpressionItem (Int_t index)
 Get the item from a specific position. More...
 
TListExpressionList ()
 Get the list of expression items. More...
 
const char * GetGrOpt ()
 Get graph option. More...
 
TTreeGetTree ()
 
Bool_t HandleTimer (TTimer *timer)
 This function is called by the fTimer object. More...
 
Bool_t IsCutEnabled ()
 
Bool_t IsScanRedirected ()
 Return kTRUE if scan is redirected. More...
 
Int_t MakeSelector (const char *selector=0)
 Get use of TTree::MakeSelector() via the context menu. More...
 
void Message (const char *msg)
 Send a message on the status bar. More...
 
void NewExpression ()
 Create new expression. More...
 
void PrintEntries ()
 Print the number of selected entries on status-bar. More...
 
Long64_t Process (const char *filename, Option_t *option="", Long64_t nentries=TTree::kMaxEntries, Long64_t firstentry=0)
 Get use of TTree::Process() via the context menu. More...
 
Bool_t ProcessMessage (Long_t msg, Long_t parm1, Long_t parm2)
 Handle menu and other commands generated. More...
 
void RemoveItem ()
 Remove the selected item from the list. More...
 
void RemoveLastRecord ()
 Remove the current record. More...
 
void SaveSource (const char *filename="", Option_t *option="")
 Save current session as a C++ macro file. More...
 
void SetCurrentRecord (Long64_t entry)
 Set current record. More...
 
void SetCutMode (Bool_t enabled=kTRUE)
 
void SetGrOpt (const char *option)
 Set graph option. More...
 
void SetHistogramTitle (const char *title)
 Set title of Histogram. More...
 
void SetNexpressions (Int_t expr)
 Change the number of expression widgets. More...
 
void SetRecordName (const char *name)
 Set record name. More...
 
void SetScanFileName (const char *name="")
 Set the name of the file where to redirect <Scan> output. More...
 
void SetScanMode (Bool_t mode=kTRUE)
 
void SetScanRedirect (Bool_t mode)
 Set the state of Scan check button. More...
 
void SetSession (TTVSession *session)
 Set current session. More...
 
void SetTree (TTree *tree)
 Assign the fTree member from existing tree, e.g. More...
 
void SetTreeName (const char *treeName)
 Allow geting the tree from the context menu. More...
 
void SetUserCode (const char *code, Bool_t autoexec=kTRUE)
 user defined command for current record More...
 
Bool_t SwitchTree (Int_t index)
 Makes current the tree at a given index in the list. More...
 
void UpdateCombo ()
 Updates combo box to current session entries. More...
 
void UpdateRecord (const char *name="new name")
 Updates current record to new X, Y, Z items. More...
 
- Public Member Functions inherited from TGMainFrame
 TGMainFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=kVerticalFrame)
 Create a top level main frame. More...
 
virtual ~TGMainFrame ()
 TGMainFrame destructor. More...
 
virtual Bool_t BindKey (const TGWindow *w, Int_t keycode, Int_t modifier) const
 Bind key to a window. More...
 
void DontCallClose ()
 Typically call this method in the slot connected to the CloseWindow() signal to prevent the calling of the default or any derived CloseWindow() methods to prevent premature or double deletion of this window. More...
 
TListGetBindList () const
 
void GetClassHints (const char *&className, const char *&resourceName) const
 
const char * GetIconName () const
 Returns mime type name of object. More...
 
const char * GetIconPixmap () const
 
void GetMWMHints (UInt_t &value, UInt_t &funcs, UInt_t &input) const
 
const char * GetWindowName () const
 
void GetWMPosition (Int_t &x, Int_t &y) const
 
void GetWMSize (UInt_t &w, UInt_t &h) const
 
void GetWMSizeHints (UInt_t &wmin, UInt_t &hmin, UInt_t &wmax, UInt_t &hmax, UInt_t &winc, UInt_t &hinc) const
 
EInitialState GetWMState () const
 
virtual Bool_t HandleButton (Event_t *event)
 Handle mouse button events. More...
 
virtual Bool_t HandleClientMessage (Event_t *event)
 Handle client messages sent to this frame. More...
 
virtual Bool_t HandleKey (Event_t *event)
 Handle keyboard events. More...
 
virtual Bool_t HandleMotion (Event_t *event)
 Handle mouse motion events. More...
 
virtual Bool_t HandleSelection (Event_t *event)
 Handle primary selection event. More...
 
virtual Bool_t HandleSelectionRequest (Event_t *event)
 Handle selection request event. More...
 
virtual void RemoveBind (const TGWindow *w, Int_t keycode, Int_t modifier) const
 Remove key binding. More...
 
virtual Bool_t SaveFrameAsCodeOrImage ()
 Opens dialog window allowing user to save the frame contents as a ROOT macro or as an image. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a main frame widget as a C++ statement(s) on output stream out. More...
 
virtual void SendCloseMessage ()
 Send close message to self. More...
 
void SetClassHints (const char *className, const char *resourceName)
 Set the windows class and resource name. More...
 
void SetIconName (const char *name)
 Set window icon name. This is typically done via the window manager. More...
 
void SetIconPixmap (char **xpm_array)
 Set window icon by xpm array. More...
 
const TGPictureSetIconPixmap (const char *iconName)
 Set window icon pixmap by name. More...
 
void SetMWMHints (UInt_t value, UInt_t funcs, UInt_t input)
 Set decoration style for MWM-compatible wm (mwm, ncdwm, fvwm?). More...
 
void SetWindowName (const char *name=0)
 Set window name. This is typically done via the window manager. More...
 
void SetWMPosition (Int_t x, Int_t y)
 Give the window manager a window position hint. More...
 
void SetWMSize (UInt_t w, UInt_t h)
 Give the window manager a window size hint. More...
 
void SetWMSizeHints (UInt_t wmin, UInt_t hmin, UInt_t wmax, UInt_t hmax, UInt_t winc, UInt_t hinc)
 Give the window manager minimum and maximum size hints. More...
 
void SetWMState (EInitialState state)
 Set the initial state of the window. Either kNormalState or kIconicState. More...
 
- Public Member Functions inherited from TGCompositeFrame
 TGCompositeFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=0, Pixel_t back=GetDefaultFrameBackground())
 Create a composite frame. More...
 
 TGCompositeFrame (TGClient *c, Window_t id, const TGWindow *parent=nullptr)
 Create a frame using an externally created window. More...
 
virtual ~TGCompositeFrame ()
 Delete a composite frame. More...
 
virtual void AddFrame (TGFrame *f, TGLayoutHints *l=0)
 Add frame to the composite frame using the specified layout hints. More...
 
virtual void ChangeOptions (UInt_t options)
 Change composite frame options. Options is an OR of the EFrameTypes. More...
 
virtual void ChangeSubframesBackground (Pixel_t back)
 Change background color for this frame and all subframes. More...
 
virtual void Cleanup ()
 Cleanup and delete all objects contained in this composite frame. More...
 
virtual TGFrameElementFindFrameElement (TGFrame *f) const
 Find frame-element holding frame f. More...
 
virtual UInt_t GetDefaultHeight () const
 
virtual TGDimension GetDefaultSize () const
 std::cout << fWidth << "x" << fHeight << std::endl; More...
 
virtual UInt_t GetDefaultWidth () const
 
virtual TGFrameGetFrameFromPoint (Int_t x, Int_t y)
 Get frame located at specified point. More...
 
virtual TGLayoutManagerGetLayoutManager () const
 
virtual TListGetList () const
 
Int_t GetState (TGFrame *f) const
 Get state of sub frame. More...
 
virtual Bool_t HandleCrossing (Event_t *)
 
virtual Bool_t HandleDoubleClick (Event_t *)
 
virtual Bool_t HandleDragDrop (TGFrame *frame, Int_t x, Int_t y, TGLayoutHints *lo)
 Handle drop event. More...
 
virtual Bool_t HandleDragEnter (TGFrame *)
 Handle drag enter event. More...
 
virtual Bool_t HandleDragLeave (TGFrame *)
 Handle drag leave event. More...
 
virtual Bool_t HandleDragMotion (TGFrame *)
 Handle drag motion event. More...
 
virtual Bool_t HandleFocusChange (Event_t *)
 
virtual void HideFrame (TGFrame *f)
 Hide sub frame. More...
 
Bool_t IsArranged (TGFrame *f) const
 Get state of sub frame. More...
 
Bool_t IsArranged (TGFrameElement *ptr) const
 
Bool_t IsComposite () const
 
virtual Bool_t IsEditable () const
 Return kTRUE if frame is being edited. More...
 
virtual Bool_t IsLayoutBroken () const
 
virtual Bool_t IsMapSubwindows () const
 
Bool_t IsVisible (TGFrame *f) const
 Get state of sub frame. More...
 
Bool_t IsVisible (TGFrameElement *ptr) const
 
virtual void Layout ()
 Layout the elements of the composite frame. More...
 
virtual void MapSubwindows ()
 Map all sub windows that are part of the composite frame. More...
 
virtual Int_t MustCleanup () const
 
virtual void Print (Option_t *option="") const
 Print all frames in this composite frame. More...
 
virtual void RemoveAll ()
 Remove all frames from composite frame. More...
 
virtual void RemoveFrame (TGFrame *f)
 Remove frame from composite frame. More...
 
virtual void SavePrimitiveSubframes (std::ostream &out, Option_t *option="")
 Auxiliary protected method used to save subframes. More...
 
virtual void SetCleanup (Int_t mode=kLocalCleanup)
 Turn on automatic cleanup of child frames in dtor. More...
 
virtual void SetEditable (Bool_t on=kTRUE)
 Switch ON/OFF edit mode. More...
 
virtual void SetEditDisabled (UInt_t on=1)
 Set edit disable flag for this frame and subframes. More...
 
virtual void SetLayoutBroken (Bool_t on=kTRUE)
 Set broken layout. No Layout method is called. More...
 
virtual void SetLayoutManager (TGLayoutManager *l)
 Set the layout manager for the composite frame. More...
 
virtual void SetMapSubwindows (Bool_t on)
 
virtual void ShowFrame (TGFrame *f)
 Show sub frame. More...
 
virtual Bool_t TranslateCoordinates (TGFrame *child, Int_t x, Int_t y, Int_t &fx, Int_t &fy)
 Translate coordinates to child frame. More...
 
- Public Member Functions inherited from TGFrame
 TGFrame (const TGWindow *p=nullptr, UInt_t w=1, UInt_t h=1, UInt_t options=0, Pixel_t back=GetDefaultFrameBackground())
 Create a TGFrame object. Options is an OR of the EFrameTypes. More...
 
 TGFrame (TGClient *c, Window_t id, const TGWindow *parent=nullptr)
 Create a frame using an externally created window. More...
 
virtual ~TGFrame ()
 Destructor. More...
 
virtual void Activate (Bool_t)
 
void AddInput (UInt_t emask)
 Add events specified in the emask to the events the frame should handle. More...
 
virtual void ChangeBackground (Pixel_t back)
 Change frame background color. More...
 
Bool_t Contains (Int_t x, Int_t y) const
 
virtual void DeleteWindow ()
 Delete window. More...
 
virtual void DrawBorder ()
 Draw frame border. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *="") const
 Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
 
virtual void DrawCopy (Handle_t, Int_t, Int_t)
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual Pixel_t GetBackground () const
 
Int_t GetBorderWidth () const
 
virtual TDNDDataGetDNDData (Atom_t)
 
virtual Int_t GetDragType () const
 Returns drag source type. More...
 
virtual Int_t GetDropType () const
 Returns drop target type. More...
 
UInt_t GetEventMask () const
 
virtual Pixel_t GetForeground () const
 Return frame foreground color. More...
 
TGFrameElementGetFrameElement () const
 
UInt_t GetHeight () const
 
UInt_t GetMaxHeight () const
 
UInt_t GetMaxWidth () const
 
UInt_t GetMinHeight () const
 
UInt_t GetMinWidth () const
 
virtual UInt_t GetOptions () const
 
TGDimension GetSize () const
 
UInt_t GetWidth () const
 
Int_t GetX () const
 
Int_t GetY () const
 
virtual Bool_t HandleColormapChange (Event_t *)
 
virtual Bool_t HandleConfigureNotify (Event_t *event)
 This event is generated when the frame is resized. More...
 
virtual Bool_t HandleDNDDrop (TDNDData *)
 
virtual Atom_t HandleDNDEnter (Atom_t *)
 
virtual Bool_t HandleDNDFinished ()
 
virtual Bool_t HandleDNDLeave ()
 
virtual Atom_t HandleDNDPosition (Int_t, Int_t, Atom_t, Int_t, Int_t)
 
virtual Bool_t HandleEvent (Event_t *event)
 Handle all frame events. More...
 
virtual Bool_t HandleSelectionClear (Event_t *)
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
virtual Bool_t IsActive () const
 
Bool_t IsDNDSource () const
 
Bool_t IsDNDTarget () const
 
virtual void MapRaised ()
 map raised More...
 
virtual void MapWindow ()
 map window More...
 
virtual void Move (Int_t x, Int_t y)
 Move frame. More...
 
virtual void MoveResize (Int_t x, Int_t y, UInt_t w=0, UInt_t h=0)
 Move and/or resize the frame. More...
 
virtual void ProcessedConfigure (Event_t *event)
 
virtual void ProcessedEvent (Event_t *event)
 
virtual void ReallyDelete ()
 
void RemoveInput (UInt_t emask)
 Remove events specified in emask from the events the frame should handle. More...
 
virtual void ReparentWindow (const TGWindow *p, Int_t x=0, Int_t y=0)
 Reparent window, make p the new parent and position the window at position (x,y) in new parent. More...
 
virtual void Resize (TGDimension size)
 Resize the frame. More...
 
virtual void Resize (UInt_t w=0, UInt_t h=0)
 Resize the frame. More...
 
void SaveUserColor (std::ostream &out, Option_t *)
 Save a user color in a C++ macro file - used in SavePrimitive(). More...
 
virtual void SendMessage (const TGWindow *w, Long_t msg, Long_t parm1, Long_t parm2)
 Send message (i.e. More...
 
virtual void SetBackgroundColor (Pixel_t back)
 Set background color (override from TGWindow base class). More...
 
void SetDNDSource (Bool_t onoff)
 
void SetDNDTarget (Bool_t onoff)
 
virtual void SetDragType (Int_t type)
 SetDragType. More...
 
virtual void SetDrawOption (Option_t *="")
 Set drawing option for object. More...
 
virtual void SetDropType (Int_t type)
 SetDropType. More...
 
virtual void SetForegroundColor (Pixel_t)
 
void SetFrameElement (TGFrameElement *fe)
 
virtual void SetHeight (UInt_t h)
 
virtual void SetMaxHeight (UInt_t h)
 
virtual void SetMaxWidth (UInt_t w)
 
virtual void SetMinHeight (UInt_t h)
 
virtual void SetMinWidth (UInt_t w)
 
virtual void SetSize (const TGDimension &s)
 
virtual void SetWidth (UInt_t w)
 
virtual void SetX (Int_t x)
 
virtual void SetY (Int_t y)
 
virtual void UnmapWindow ()
 unmap window More...
 
- Public Member Functions inherited from TGWindow
 TGWindow (const TGWindow *p=0, Int_t x=0, Int_t y=0, UInt_t w=0, UInt_t h=0, UInt_t border=0, Int_t depth=0, UInt_t clss=0, void *visual=0, SetWindowAttributes_t *attr=0, UInt_t wtype=0)
 Create a new window. More...
 
 TGWindow (TGClient *c, Window_t id, const TGWindow *parent=0)
 Create a copy of a window. More...
 
virtual ~TGWindow ()
 Window destructor. Unregisters the window. More...
 
virtual void DestroySubwindows ()
 destroy sub windows More...
 
virtual void DestroyWindow ()
 destroy window More...
 
virtual UInt_t GetEditDisabled () const
 
virtual const TGWindowGetMainFrame () const
 Returns top level main frame. More...
 
virtual const char * GetName () const
 Return unique name, used in SavePrimitive methods. More...
 
const TGWindowGetParent () const
 
virtual Bool_t HandleExpose (Event_t *event)
 
virtual Bool_t HandleIdleEvent (TGIdleHandler *)
 
virtual void IconifyWindow ()
 iconify window More...
 
virtual Bool_t IsMapped ()
 Returns kTRUE if window is mapped on screen, kFALSE otherwise. More...
 
virtual void LowerWindow ()
 lower window More...
 
virtual void RaiseWindow ()
 raise window More...
 
virtual void RequestFocus ()
 request focus More...
 
virtual void SetBackgroundPixmap (Pixmap_t pixmap)
 set background pixmap More...
 
virtual void SetName (const char *name)
 
- Public Member Functions inherited from TGObject
 TGObject ()
 
 TGObject (const TGObject &tgo)
 
virtual ~TGObject ()
 TGObject destructor. More...
 
TGClientGetClient () const
 
Handle_t GetId () const
 
ULong_t Hash () const
 Return hash value for this object. More...
 
Bool_t IsEqual (const TObject *obj) const
 Equal comparison (TGObjects are equal if they have the same window identifier). More...
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Write this TGObject to a file using TImage, if filename's extension signals a valid TImage::EImageFileType, as defined by TImage::GetImageFileTypeFromFilename(). More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
ULong_t CheckedHash ()
 Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare abstract method. More...
 
virtual void Copy (TObject &object) const
 Copy this to obj. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Computes distance from point (px,py) to the object. More...
 
virtual void Draw (Option_t *option="")
 Default Draw method for all objects. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
virtual void Execute (const char *method, const char *params, Int_t *error=0)
 Execute method on this object with the given parameter string, e.g. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute action corresponding to an event at (px,py). More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
Bool_t HasInconsistentHash () const
 Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
void InvertBit (UInt_t f)
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
R__ALWAYS_INLINE Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
virtual void ls (Option_t *option="") const
 The ls function lists the contents of a class on stdout. More...
 
void MayNotUse (const char *method) const
 Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Paint (Option_t *option="")
 This method must be overridden if a class wants to paint itself. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
void SetBit (UInt_t f)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
R__ALWAYS_INLINE Bool_t TestBit (UInt_t f) const
 
Int_t TestBits (UInt_t f) const
 
virtual void UseCurrentStyle ()
 Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 
- Public Member Functions inherited from TQObject
 TQObject ()
 TQObject Constructor. More...
 
virtual ~TQObject ()
 TQObject Destructor. More...
 
Bool_t AreSignalsBlocked () const
 
Bool_t BlockSignals (Bool_t b)
 
virtual void ChangedBy (const char *method)
 
void CollectClassSignalLists (TList &list, TClass *cls)
 Collect class signal lists from class cls and all its base-classes. More...
 
Bool_t Connect (const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Non-static method is used to connect from the signal of this object to the receiver slot. More...
 
virtual void Connected (const char *)
 
virtual void Destroyed ()
 
Bool_t Disconnect (const char *signal=0, void *receiver=0, const char *slot=0)
 Disconnects signal of this object from slot of receiver. More...
 
virtual void Disconnected (const char *)
 
void Emit (const char *signal)
 Activate signal without args. More...
 
template<typename T >
void Emit (const char *signal, const T &arg)
 Activate signal with single parameter. More...
 
template<typename... T>
void EmitVA (const char *signal_name, Int_t, const T &... params)
 Emit a signal with a varying number of arguments. More...
 
TListGetListOfClassSignals () const
 Returns pointer to list of signals of this class. More...
 
TListGetListOfConnections () const
 
TListGetListOfSignals () const
 
virtual Bool_t HasConnection (const char *signal_name) const
 Return true if there is any object connected to this signal. More...
 
virtual void HighPriority (const char *signal_name, const char *slot_name=0)
 
virtual void LowPriority (const char *signal_name, const char *slot_name=0)
 
virtual Int_t NumberOfConnections () const
 Return number of connections for this object. More...
 
virtual Int_t NumberOfSignals () const
 Return number of signals for this object. More...
 

Private Member Functions

void BuildInterface ()
 Create all viewer widgets. More...
 
const char * Cut ()
 Apply Cut. More...
 
Int_t Dimension ()
 Compute dimension of the histogram. More...
 
void DoError (int level, const char *location, const char *fmt, va_list va) const
 Put error/warning into TMsgBox and also forward to console. More...
 
const char * EmptyBrackets (const char *name)
 Empty the bracket content of a string. More...
 
const char * En (Int_t n)
 Get the n'th expression. More...
 
const char * Ex ()
 Get the expression to be drawn on X axis. More...
 
const char * Ey ()
 Get the expression to be drawn on Y axis. More...
 
const char * Ez ()
 Get the expression to be drawn on Z axis. More...
 
void MapBranch (TBranch *branch, const char *prefix="", TGListTreeItem *parent=0, Bool_t listIt=kTRUE)
 Map current branch and expand its content in the list view. More...
 
void MapOptions (Long_t parm1)
 Scan the selected options from option menu. More...
 
void MapTree (TTree *tree, TGListTreeItem *parent=0, Bool_t listIt=kTRUE)
 Map current tree and expand its content (including friends) in the lists. More...
 
const char * ScanList ()
 returns scanlist More...
 
void SetFile ()
 Set file name containing the tree. More...
 
void SetParentTree (TGListTreeItem *item)
 Find parent tree of a clicked item. More...
 

Private Attributes

TTreefTree
 Selected tree. More...
 
TTVSessionfSession
 Current tree-viewer session. More...
 
const char * fFilename
 Name of the file containing the tree. More...
 
const char * fSourceFile
 Name of the C++ source file - default treeviewer.C. More...
 
TString fLastOption
 Last graphic option. More...
 
TTreefMappedTree
 Listed tree. More...
 
TBranchfMappedBranch
 Listed branch. More...
 
Int_t fDimension
 Histogram dimension. More...
 
Bool_t fVarDraw
 True if an item is double-clicked. More...
 
Bool_t fScanMode
 Flag activated when Scan Box is double-clicked. More...
 
TContextMenufContextMenu
 Context menu for tree viewer. More...
 
TGSelectBoxfDialogBox
 Expression editor. More...
 
TListfTreeList
 List of mapped trees. More...
 
Int_t fTreeIndex
 Index of current tree in list. More...
 
const TGPicturefPicX
 Pictures for X expressions. More...
 
const TGPicturefPicY
 Pictures for Y expressions. More...
 
const TGPicturefPicZ
 Pictures for Z expressions. More...
 
const TGPicturefPicDraw
 Pictures for Draw buttons. More...
 
const TGPicturefPicStop
 Pictures for Stop buttons. More...
 
const TGPicturefPicRefr
 Pictures for Refresh buttons ///<ia. More...
 
Cursor_t fDefaultCursor
 Default cursor. More...
 
Cursor_t fWatchCursor
 Watch cursor. More...
 
TTimerfTimer
 Tree viewer timer. More...
 
Bool_t fCounting
 True if timer is counting. More...
 
Bool_t fStopMapping
 True if branch don't need remapping. More...
 
Bool_t fEnableCut
 True if cuts are enabled. More...
 
Int_t fNexpressions
 Number of expression widgets. More...
 
Menu bar, menu bar entries and layouts
TGLayoutHintsfMenuBarLayout
 
TGLayoutHintsfMenuBarItemLayout
 
TGLayoutHintsfMenuBarHelpLayout
 
TGMenuBarfMenuBar
 
TGPopupMenufFileMenu
 
TGPopupMenufEditMenu
 
TGPopupMenufRunMenu
 
TGPopupMenufOptionsMenu
 
TGPopupMenufOptionsGen
 
TGPopupMenufOptions1D
 
TGPopupMenufOptions2D
 
TGPopupMenufHelpMenu
 
Toolbar and hints
TGToolBarfToolBar
 
TGLayoutHintsfBarLayout
 
Widgets on the toolbar
TGLabelfBarLbl1
 Label of command text entry. More...
 
TGLabelfBarLbl2
 Label of option text entry. More...
 
TGLabelfBarLbl3
 Label of histogram name text entry. More...
 
TGCheckButtonfBarH
 Checked for drawing current histogram with different graphic option. More...
 
TGCheckButtonfBarScan
 Checked for tree scan. More...
 
TGCheckButtonfBarRec
 Command recording toggle. More...
 
TGTextEntryfBarCommand
 User command entry. More...
 
TGTextEntryfBarOption
 Histogram drawing option entry. More...
 
TGTextEntryfBarHist
 Histogram name entry. More...
 
Frames
TGHorizontalFramefHf
 Main horizontal frame. More...
 
TGDoubleVSliderfSlider
 Vertical slider to select processed tree entries;. More...
 
TGVerticalFramefV1
 List tree mother. More...
 
TGVerticalFramefV2
 List view mother. More...
 
TGCompositeFramefTreeHdr
 Header for list tree. More...
 
TGCompositeFramefListHdr
 Header for list view. More...
 
TGLabelfLbl1
 Label for list tree. More...
 
TGLabelfLbl2
 Label for list view. More...
 
TGHorizontalFramefBFrame
 Button frame. More...
 
TGHorizontalFramefHpb
 Progress bar frame. More...
 
TGHProgressBarfProgressBar
 Progress bar. More...
 
TGLabelfBLbl4
 Label for input list entry. More...
 
TGLabelfBLbl5
 Label for output list entry. More...
 
TGTextEntryfBarListIn
 Tree input event list name entry. More...
 
TGTextEntryfBarListOut
 Pree output event list name entry. More...
 
TGPictureButtonfDRAW
 DRAW button. More...
 
TGTextButtonfSPIDER
 SPIDER button. More...
 
TGPictureButtonfSTOP
 Interrupt current command (not yet) More...
 
TGPictureButtonfREFR
 REFRESH button ///<ia. More...
 
TGStatusBarfStatusBar
 Status bar. More...
 
TGComboBoxfCombo
 Combo box with session records. More...
 
TGPictureButtonfBGFirst
 
TGPictureButtonfBGPrevious
 
TGPictureButtonfBGRecord
 
TGPictureButtonfBGNext
 
TGPictureButtonfBGLast
 
TGTextButtonfReset
 clear expression's entries More...
 
ListTree
TGCanvasfTreeView
 ListTree canvas container. More...
 
TGListTreefLt
 ListTree with file and tree items. More...
 
ListView
TGListViewfListView
 ListView with branches and leaves. More...
 
TTVLVContainerfLVContainer
 Container for listview. More...
 
TListfWidgets
 List of widgets to be deleted. More...
 

Friends

class TGButton
 
class TGClient
 

Additional Inherited Members

- Static Public Member Functions inherited from TGFrame
static const TGGCGetBckgndGC ()
 Get background color graphics context. More...
 
static const TGGCGetBlackGC ()
 Get black graphics context. More...
 
static Pixel_t GetBlackPixel ()
 Get black pixel value. More...
 
static Pixel_t GetDefaultFrameBackground ()
 Get default frame background. More...
 
static Pixel_t GetDefaultSelectedBackground ()
 Get default selected frame background. More...
 
static const TGGCGetHilightGC ()
 Get highlight color graphics context. More...
 
static const TGGCGetShadowGC ()
 Get shadow color graphics context. More...
 
static const TGGCGetWhiteGC ()
 Get white graphics context. More...
 
static Pixel_t GetWhitePixel ()
 Get white pixel value. More...
 
- Static Public Member Functions inherited from TGWindow
static Int_t GetCounter ()
 Return global window counter (total number of created windows). More...
 
- Static Public Member Functions inherited from TObject
static Longptr_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- Static Public Member Functions inherited from TQObject
static Bool_t AreAllSignalsBlocked ()
 Returns true if all signals are blocked. More...
 
static Bool_t BlockAllSignals (Bool_t b)
 Block or unblock all signals. Returns the previous block status. More...
 
static Bool_t Connect (const char *sender_class, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 This method allows to make a connection from any object of the same class to a single slot. More...
 
static Bool_t Connect (TQObject *sender, const char *signal, const char *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver. More...
 
static Bool_t Disconnect (const char *class_name, const char *signal, void *receiver=0, const char *slot=0)
 Disconnects "class signal". More...
 
static Bool_t Disconnect (TQObject *sender, const char *signal=0, void *receiver=0, const char *slot=0)
 Disconnects signal in object sender from slot_method in object receiver. More...
 
- Protected Types inherited from TGMainFrame
enum  { kDontCallClose = BIT(14) }
 
- Protected Types inherited from TGFrame
enum  { kDeleteWindowCalled = BIT(15) }
 
- Protected Types inherited from TObject
enum  { kOnlyPrepStep = BIT(3) }
 
- Protected Member Functions inherited from TGMainFrame
TString GetMWMfuncString () const
 used in SaveSource() More...
 
TString GetMWMinpString () const
 used in SaveSource() More...
 
TString GetMWMvalueString () const
 used in SaveSource() More...
 
- Protected Member Functions inherited from TGFrame
virtual void DoRedraw ()
 Redraw the frame. More...
 
virtual void Draw3dRectangle (UInt_t type, Int_t x, Int_t y, UInt_t w, UInt_t h)
 Draw 3D rectangle on the frame border. More...
 
TString GetOptionString () const
 Returns a frame option string - used in SavePrimitive(). More...
 
const TGResourcePoolGetResourcePool () const
 
virtual voidGetSender ()
 
virtual void StartGuiBuilding (Bool_t on=kTRUE)
 Go into GUI building mode. More...
 
- Protected Member Functions inherited from TGWindow
 TGWindow (const TGWindow &tgw)
 
 TGWindow (Window_t id)
 
TGWindowoperator= (const TGWindow &tgw)
 
- Protected Member Functions inherited from TGObject
TGObjectoperator= (const TGObject &tgo)
 
- Protected Member Functions inherited from TObject
void MakeZombie ()
 
- Protected Member Functions inherited from TQObject
virtual const char * GetSenderClassName () const
 
- Static Protected Member Functions inherited from TGFrame
static Time_t GetLastClick ()
 Get time of last mouse click. More...
 
- Static Protected Member Functions inherited from TQObject
static Int_t CheckConnectArgs (TQObject *sender, TClass *sender_class, const char *signal, TClass *receiver_class, const char *slot)
 Checking of consistency of sender/receiver methods/arguments. More...
 
static TString CompressName (const char *method_name)
 Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature. More...
 
static Bool_t ConnectToClass (const char *sender_class, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 This method allows to make connection from any object of the same class to the receiver object. More...
 
static Bool_t ConnectToClass (TQObject *sender, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
 Create connection between sender and receiver. More...
 
- Protected Attributes inherited from TGMainFrame
TListfBindList
 list with key bindings More...
 
TString fClassName
 WM class name. More...
 
Atom_tfDNDTypeList
 handles DND types More...
 
TString fIconName
 icon name More...
 
TString fIconPixmap
 icon pixmap name More...
 
UInt_t fMWMFuncs
 MWM functions. More...
 
UInt_t fMWMInput
 MWM input modes. More...
 
UInt_t fMWMValue
 MWM decoration hints. More...
 
TString fResourceName
 WM resource name. More...
 
TString fWindowName
 window name More...
 
UInt_t fWMHeight
 WM height. More...
 
UInt_t fWMHeightInc
 WM height increments. More...
 
EInitialState fWMInitState
 WM initial state. More...
 
UInt_t fWMMaxHeight
 WM max height. More...
 
UInt_t fWMMaxWidth
 WM max width. More...
 
UInt_t fWMMinHeight
 WM min height. More...
 
UInt_t fWMMinWidth
 WM min width. More...
 
UInt_t fWMWidth
 WM width. More...
 
UInt_t fWMWidthInc
 WM width increments. More...
 
Int_t fWMX
 WM x position. More...
 
Int_t fWMY
 WM y position. More...
 
- Protected Attributes inherited from TGCompositeFrame
Bool_t fLayoutBroken
 no layout manager is used More...
 
TGLayoutManagerfLayoutManager
 layout manager More...
 
TListfList
 container of frame elements More...
 
Bool_t fMapSubwindows
 kTRUE - map subwindows More...
 
Int_t fMustCleanup
 cleanup mode (see EFrameCleanup) More...
 
- Protected Attributes inherited from TGFrame
Pixel_t fBackground
 frame background color More...
 
Int_t fBorderWidth
 frame border width More...
 
Int_t fDNDState
 EDNDFlags. More...
 
UInt_t fEventMask
 currently active event mask More...
 
TGFrameElementfFE
 pointer to frame element More...
 
UInt_t fHeight
 frame height More...
 
UInt_t fMaxHeight
 maximal frame height More...
 
UInt_t fMaxWidth
 maximal frame width More...
 
UInt_t fMinHeight
 minimal frame height More...
 
UInt_t fMinWidth
 minimal frame width More...
 
UInt_t fOptions
 frame options More...
 
UInt_t fWidth
 frame width More...
 
Int_t fX
 frame x position More...
 
Int_t fY
 frame y position More...
 
- Protected Attributes inherited from TGWindow
UInt_t fEditDisabled
 flags used for "guibuilding" More...
 
TString fName
 name of the window used in SavePrimitive() More...
 
Bool_t fNeedRedraw
 kTRUE if window needs to be redrawn More...
 
const TGWindowfParent
 Parent window. More...
 
- Protected Attributes inherited from TGObject
TGClientfClient
 Connection to display server. More...
 
Handle_t fId
 X11/Win32 Window identifier. More...
 
- Protected Attributes inherited from TQObject
TListfListOfConnections
 list of signals from this object More...
 
TListfListOfSignals
 
Bool_t fSignalsBlocked
 list of connections to this object More...
 
- Static Protected Attributes inherited from TGCompositeFrame
static TGLayoutHintsfgDefaultHints = nullptr
 
- Static Protected Attributes inherited from TGFrame
static const TGGCfgBckgndGC = nullptr
 
static const TGGCfgBlackGC = nullptr
 
static Pixel_t fgBlackPixel = 0
 
static Window_t fgDbw = 0
 
static Int_t fgDbx = 0
 
static Int_t fgDby = 0
 
static Pixel_t fgDefaultFrameBackground = 0
 
static Pixel_t fgDefaultSelectedBackground = 0
 
static const TGGCfgHilightGC = nullptr
 
static Bool_t fgInit = kFALSE
 
static UInt_t fgLastButton = 0
 
static Time_t fgLastClick = 0
 
static const TGGCfgShadowGC = nullptr
 
static UInt_t fgUserColor = 0
 
static const TGGCfgWhiteGC = nullptr
 
static Pixel_t fgWhitePixel = 0
 
- Static Protected Attributes inherited from TGWindow
static Int_t fgCounter = 0
 counter of created windows in SavePrimitive More...
 
- Static Protected Attributes inherited from TQObject
static Bool_t fgAllSignalsBlocked = kFALSE
 flag used for suppression of signals More...
 

#include <TTreeViewer.h>

Inheritance diagram for TTreeViewer:
[legend]

Member Enumeration Documentation

◆ EListItemType

Item types used as user data.

Enumerator
kLTNoType 
kLTPackType 
kLTTreeType 
kLTBranchType 
kLTLeafType 
kLTActionType 
kLTDragType 
kLTExpressionType 
kLTCutType 

Definition at line 61 of file TTreeViewer.h.

Constructor & Destructor Documentation

◆ TTreeViewer() [1/2]

TTreeViewer::TTreeViewer ( const char *  treeName = 0)

TTreeViewer default constructor.

Definition at line 317 of file TTreeViewer.cxx.

◆ TTreeViewer() [2/2]

TTreeViewer::TTreeViewer ( const TTree tree)

Definition at line 345 of file TTreeViewer.cxx.

◆ ~TTreeViewer()

TTreeViewer::~TTreeViewer ( )
virtual

TTreeViewer destructor.

Definition at line 1166 of file TTreeViewer.cxx.

Member Function Documentation

◆ ActivateButtons()

void TTreeViewer::ActivateButtons ( Bool_t  first,
Bool_t  previous,
Bool_t  next,
Bool_t  last 
)

Enable/disable session buttons.

Definition at line 1252 of file TTreeViewer.cxx.

◆ AppendTree()

void TTreeViewer::AppendTree ( TTree tree)

Allow geting the tree from the context menu.

Definition at line 387 of file TTreeViewer.cxx.

◆ BuildInterface()

void TTreeViewer::BuildInterface ( )
private

Create all viewer widgets.

Definition at line 607 of file TTreeViewer.cxx.

◆ CloseWindow()

void TTreeViewer::CloseWindow ( )
virtual

Close the viewer.

Reimplemented from TGMainFrame.

Definition at line 2298 of file TTreeViewer.cxx.

◆ Cut()

const char * TTreeViewer::Cut ( )
private

Apply Cut.

Definition at line 1268 of file TTreeViewer.cxx.

◆ Delete()

virtual void TTreeViewer::Delete ( Option_t option)
inlinevirtual

Delete this object.

Typically called as a command via the interpreter. Normally use "delete" operator when object has been allocated on the heap.

Reimplemented from TGFrame.

Definition at line 213 of file TTreeViewer.h.

◆ Dimension()

Int_t TTreeViewer::Dimension ( )
private

Compute dimension of the histogram.

Definition at line 1370 of file TTreeViewer.cxx.

◆ DoError()

void TTreeViewer::DoError ( int  level,
const char *  location,
const char *  fmt,
va_list  va 
) const
privatevirtual

Put error/warning into TMsgBox and also forward to console.

Reimplemented from TObject.

Definition at line 2664 of file TTreeViewer.cxx.

◆ DoRefresh()

void TTreeViewer::DoRefresh ( )

This slot is called when button REFR is clicked.

Definition at line 2915 of file TTreeViewer.cxx.

◆ EditExpression()

void TTreeViewer::EditExpression ( )

Start the expression editor.

Definition at line 1669 of file TTreeViewer.cxx.

◆ Empty()

void TTreeViewer::Empty ( )

Empty the content of the selected expression.

Definition at line 1330 of file TTreeViewer.cxx.

◆ EmptyAll()

void TTreeViewer::EmptyAll ( )

Clear the content of all items in the list view.

Definition at line 1322 of file TTreeViewer.cxx.

◆ EmptyBrackets()

const char * TTreeViewer::EmptyBrackets ( const char *  name)
private

Empty the bracket content of a string.

Definition at line 1295 of file TTreeViewer.cxx.

◆ En()

const char * TTreeViewer::En ( Int_t  n)
private

Get the n'th expression.

Definition at line 1659 of file TTreeViewer.cxx.

◆ Ex()

const char * TTreeViewer::Ex ( )
private

Get the expression to be drawn on X axis.

Definition at line 1635 of file TTreeViewer.cxx.

◆ ExecuteCommand()

void TTreeViewer::ExecuteCommand ( const char *  command,
Bool_t  fast = kFALSE 
)

Execute all user commands.

Definition at line 2306 of file TTreeViewer.cxx.

◆ ExecuteDraw()

void TTreeViewer::ExecuteDraw ( )

Called when the DRAW button is executed.

Definition at line 1382 of file TTreeViewer.cxx.

◆ ExecuteSpider()

void TTreeViewer::ExecuteSpider ( )

Draw a spider plot for the selected entries.

Definition at line 1551 of file TTreeViewer.cxx.

◆ ExpressionItem()

TTVLVEntry * TTreeViewer::ExpressionItem ( Int_t  index)

Get the item from a specific position.

Definition at line 1354 of file TTreeViewer.cxx.

◆ ExpressionList()

TList * TTreeViewer::ExpressionList ( )

Get the list of expression items.

Definition at line 1362 of file TTreeViewer.cxx.

◆ Ey()

const char * TTreeViewer::Ey ( )
private

Get the expression to be drawn on Y axis.

Definition at line 1643 of file TTreeViewer.cxx.

◆ Ez()

const char * TTreeViewer::Ez ( )
private

Get the expression to be drawn on Z axis.

Definition at line 1651 of file TTreeViewer.cxx.

◆ GetGrOpt()

const char * TTreeViewer::GetGrOpt ( )

Get graph option.

Definition at line 1721 of file TTreeViewer.cxx.

◆ GetTree()

TTree* TTreeViewer::GetTree ( )
inline

Definition at line 224 of file TTreeViewer.h.

◆ HandleTimer()

Bool_t TTreeViewer::HandleTimer ( TTimer timer)
virtual

This function is called by the fTimer object.

Reimplemented from TGWindow.

Definition at line 1775 of file TTreeViewer.cxx.

◆ IsCutEnabled()

Bool_t TTreeViewer::IsCutEnabled ( )
inline

Definition at line 226 of file TTreeViewer.h.

◆ IsScanRedirected()

Bool_t TTreeViewer::IsScanRedirected ( )

Return kTRUE if scan is redirected.

Definition at line 1737 of file TTreeViewer.cxx.

◆ MakeSelector()

Int_t TTreeViewer::MakeSelector ( const char *  selector = 0)

Get use of TTree::MakeSelector() via the context menu.

Definition at line 1703 of file TTreeViewer.cxx.

◆ MapBranch()

void TTreeViewer::MapBranch ( TBranch branch,
const char *  prefix = "",
TGListTreeItem parent = 0,
Bool_t  listIt = kTRUE 
)
private

Map current branch and expand its content in the list view.

Definition at line 2459 of file TTreeViewer.cxx.

◆ MapOptions()

void TTreeViewer::MapOptions ( Long_t  parm1)
private

Scan the selected options from option menu.

Definition at line 2335 of file TTreeViewer.cxx.

◆ MapTree()

void TTreeViewer::MapTree ( TTree tree,
TGListTreeItem parent = 0,
Bool_t  listIt = kTRUE 
)
private

Map current tree and expand its content (including friends) in the lists.

Definition at line 2413 of file TTreeViewer.cxx.

◆ Message()

void TTreeViewer::Message ( const char *  msg)
virtual

Send a message on the status bar.

Reimplemented from TQObject.

Definition at line 2656 of file TTreeViewer.cxx.

◆ NewExpression()

void TTreeViewer::NewExpression ( )

Create new expression.

Definition at line 2616 of file TTreeViewer.cxx.

◆ PrintEntries()

void TTreeViewer::PrintEntries ( )

Print the number of selected entries on status-bar.

Definition at line 2700 of file TTreeViewer.cxx.

◆ Process()

Long64_t TTreeViewer::Process ( const char *  filename,
Option_t option = "",
Long64_t  nentries = TTree::kMaxEntries,
Long64_t  firstentry = 0 
)

Get use of TTree::Process() via the context menu.

Definition at line 1712 of file TTreeViewer.cxx.

◆ ProcessMessage()

Bool_t TTreeViewer::ProcessMessage ( Long_t  msg,
Long_t  parm1,
Long_t  parm2 
)
virtual

Handle menu and other commands generated.

Reimplemented from TGCompositeFrame.

Definition at line 1792 of file TTreeViewer.cxx.

◆ RemoveItem()

void TTreeViewer::RemoveItem ( )

Remove the selected item from the list.

Definition at line 1745 of file TTreeViewer.cxx.

◆ RemoveLastRecord()

void TTreeViewer::RemoveLastRecord ( )

Remove the current record.

Definition at line 1767 of file TTreeViewer.cxx.

◆ SaveSource()

void TTreeViewer::SaveSource ( const char *  filename = "",
Option_t option = "" 
)
virtual

Save current session as a C++ macro file.

Reimplemented from TGMainFrame.

Definition at line 2713 of file TTreeViewer.cxx.

◆ ScanList()

const char * TTreeViewer::ScanList ( )
private

returns scanlist

Definition at line 1276 of file TTreeViewer.cxx.

◆ SetCurrentRecord()

void TTreeViewer::SetCurrentRecord ( Long64_t  entry)

Set current record.

Definition at line 2864 of file TTreeViewer.cxx.

◆ SetCutMode()

void TTreeViewer::SetCutMode ( Bool_t  enabled = kTRUE)
inline

Definition at line 238 of file TTreeViewer.h.

◆ SetFile()

void TTreeViewer::SetFile ( )
private

Set file name containing the tree.

Definition at line 581 of file TTreeViewer.cxx.

◆ SetGrOpt()

void TTreeViewer::SetGrOpt ( const char *  option)

Set graph option.

Definition at line 1729 of file TTreeViewer.cxx.

◆ SetHistogramTitle()

void TTreeViewer::SetHistogramTitle ( const char *  title)

Set title of Histogram.

Definition at line 2872 of file TTreeViewer.cxx.

◆ SetNexpressions()

void TTreeViewer::SetNexpressions ( Int_t  expr)

Change the number of expression widgets.

Definition at line 452 of file TTreeViewer.cxx.

◆ SetParentTree()

void TTreeViewer::SetParentTree ( TGListTreeItem item)
private

Find parent tree of a clicked item.

Definition at line 2637 of file TTreeViewer.cxx.

◆ SetRecordName()

void TTreeViewer::SetRecordName ( const char *  name)

Set record name.

Definition at line 2856 of file TTreeViewer.cxx.

◆ SetScanFileName()

void TTreeViewer::SetScanFileName ( const char *  name = "")

Set the name of the file where to redirect <Scan> output.

Definition at line 462 of file TTreeViewer.cxx.

◆ SetScanMode()

void TTreeViewer::SetScanMode ( Bool_t  mode = kTRUE)
inline

Definition at line 244 of file TTreeViewer.h.

◆ SetScanRedirect()

void TTreeViewer::SetScanRedirect ( Bool_t  mode)

Set the state of Scan check button.

Definition at line 469 of file TTreeViewer.cxx.

◆ SetSession()

void TTreeViewer::SetSession ( TTVSession session)

Set current session.

Definition at line 1284 of file TTreeViewer.cxx.

◆ SetTree()

void TTreeViewer::SetTree ( TTree tree)

Assign the fTree member from existing tree, e.g.

when calling tree->StartViewer() from the browser, or even from the command line.

Definition at line 480 of file TTreeViewer.cxx.

◆ SetTreeName()

void TTreeViewer::SetTreeName ( const char *  treeName)

Allow geting the tree from the context menu.

Definition at line 516 of file TTreeViewer.cxx.

◆ SetUserCode()

void TTreeViewer::SetUserCode ( const char *  code,
Bool_t  autoexec = kTRUE 
)

user defined command for current record

Definition at line 2885 of file TTreeViewer.cxx.

◆ SwitchTree()

Bool_t TTreeViewer::SwitchTree ( Int_t  index)

Makes current the tree at a given index in the list.

Definition at line 2823 of file TTreeViewer.cxx.

◆ UpdateCombo()

void TTreeViewer::UpdateCombo ( )

Updates combo box to current session entries.

Definition at line 2894 of file TTreeViewer.cxx.

◆ UpdateRecord()

void TTreeViewer::UpdateRecord ( const char *  name = "new name")

Updates current record to new X, Y, Z items.

Definition at line 2907 of file TTreeViewer.cxx.

Friends And Related Function Documentation

◆ TGButton

friend class TGButton
friend

Definition at line 57 of file TTreeViewer.h.

◆ TGClient

friend class TGClient
friend

Definition at line 56 of file TTreeViewer.h.

Member Data Documentation

◆ fBarCommand

TGTextEntry* TTreeViewer::fBarCommand
private

User command entry.

Definition at line 135 of file TTreeViewer.h.

◆ fBarH

TGCheckButton* TTreeViewer::fBarH
private

Checked for drawing current histogram with different graphic option.

Definition at line 132 of file TTreeViewer.h.

◆ fBarHist

TGTextEntry* TTreeViewer::fBarHist
private

Histogram name entry.

Definition at line 137 of file TTreeViewer.h.

◆ fBarLayout

TGLayoutHints* TTreeViewer::fBarLayout
private

Definition at line 124 of file TTreeViewer.h.

◆ fBarLbl1

TGLabel* TTreeViewer::fBarLbl1
private

Label of command text entry.

Definition at line 129 of file TTreeViewer.h.

◆ fBarLbl2

TGLabel* TTreeViewer::fBarLbl2
private

Label of option text entry.

Definition at line 130 of file TTreeViewer.h.

◆ fBarLbl3

TGLabel* TTreeViewer::fBarLbl3
private

Label of histogram name text entry.

Definition at line 131 of file TTreeViewer.h.

◆ fBarListIn

TGTextEntry* TTreeViewer::fBarListIn
private

Tree input event list name entry.

Definition at line 155 of file TTreeViewer.h.

◆ fBarListOut

TGTextEntry* TTreeViewer::fBarListOut
private

Pree output event list name entry.

Definition at line 156 of file TTreeViewer.h.

◆ fBarOption

TGTextEntry* TTreeViewer::fBarOption
private

Histogram drawing option entry.

Definition at line 136 of file TTreeViewer.h.

◆ fBarRec

TGCheckButton* TTreeViewer::fBarRec
private

Command recording toggle.

Definition at line 134 of file TTreeViewer.h.

◆ fBarScan

TGCheckButton* TTreeViewer::fBarScan
private

Checked for tree scan.

Definition at line 133 of file TTreeViewer.h.

◆ fBFrame

TGHorizontalFrame* TTreeViewer::fBFrame
private

Button frame.

Definition at line 150 of file TTreeViewer.h.

◆ fBGFirst

TGPictureButton* TTreeViewer::fBGFirst
private

Definition at line 163 of file TTreeViewer.h.

◆ fBGLast

TGPictureButton* TTreeViewer::fBGLast
private

Definition at line 167 of file TTreeViewer.h.

◆ fBGNext

TGPictureButton* TTreeViewer::fBGNext
private

Definition at line 166 of file TTreeViewer.h.

◆ fBGPrevious

TGPictureButton* TTreeViewer::fBGPrevious
private

Definition at line 164 of file TTreeViewer.h.

◆ fBGRecord

TGPictureButton* TTreeViewer::fBGRecord
private

Definition at line 165 of file TTreeViewer.h.

◆ fBLbl4

TGLabel* TTreeViewer::fBLbl4
private

Label for input list entry.

Definition at line 153 of file TTreeViewer.h.

◆ fBLbl5

TGLabel* TTreeViewer::fBLbl5
private

Label for output list entry.

Definition at line 154 of file TTreeViewer.h.

◆ fCombo

TGComboBox* TTreeViewer::fCombo
private

Combo box with session records.

Definition at line 162 of file TTreeViewer.h.

◆ fContextMenu

TContextMenu* TTreeViewer::fContextMenu
private

Context menu for tree viewer.

Definition at line 86 of file TTreeViewer.h.

◆ fCounting

Bool_t TTreeViewer::fCounting
private

True if timer is counting.

Definition at line 99 of file TTreeViewer.h.

◆ fDefaultCursor

Cursor_t TTreeViewer::fDefaultCursor
private

Default cursor.

Definition at line 96 of file TTreeViewer.h.

◆ fDialogBox

TGSelectBox* TTreeViewer::fDialogBox
private

Expression editor.

Definition at line 87 of file TTreeViewer.h.

◆ fDimension

Int_t TTreeViewer::fDimension
private

Histogram dimension.

Definition at line 83 of file TTreeViewer.h.

◆ fDRAW

TGPictureButton* TTreeViewer::fDRAW
private

DRAW button.

Definition at line 157 of file TTreeViewer.h.

◆ fEditMenu

TGPopupMenu* TTreeViewer::fEditMenu
private

Definition at line 112 of file TTreeViewer.h.

◆ fEnableCut

Bool_t TTreeViewer::fEnableCut
private

True if cuts are enabled.

Definition at line 101 of file TTreeViewer.h.

◆ fFileMenu

TGPopupMenu* TTreeViewer::fFileMenu
private

Definition at line 111 of file TTreeViewer.h.

◆ fFilename

const char* TTreeViewer::fFilename
private

Name of the file containing the tree.

Definition at line 78 of file TTreeViewer.h.

◆ fHelpMenu

TGPopupMenu* TTreeViewer::fHelpMenu
private

Definition at line 118 of file TTreeViewer.h.

◆ fHf

TGHorizontalFrame* TTreeViewer::fHf
private

Main horizontal frame.

Definition at line 142 of file TTreeViewer.h.

◆ fHpb

TGHorizontalFrame* TTreeViewer::fHpb
private

Progress bar frame.

Definition at line 151 of file TTreeViewer.h.

◆ fLastOption

TString TTreeViewer::fLastOption
private

Last graphic option.

Definition at line 80 of file TTreeViewer.h.

◆ fLbl1

TGLabel* TTreeViewer::fLbl1
private

Label for list tree.

Definition at line 148 of file TTreeViewer.h.

◆ fLbl2

TGLabel* TTreeViewer::fLbl2
private

Label for list view.

Definition at line 149 of file TTreeViewer.h.

◆ fListHdr

TGCompositeFrame* TTreeViewer::fListHdr
private

Header for list view.

Definition at line 147 of file TTreeViewer.h.

◆ fListView

TGListView* TTreeViewer::fListView
private

ListView with branches and leaves.

Definition at line 179 of file TTreeViewer.h.

◆ fLt

TGListTree* TTreeViewer::fLt
private

ListTree with file and tree items.

Definition at line 174 of file TTreeViewer.h.

◆ fLVContainer

TTVLVContainer* TTreeViewer::fLVContainer
private

Container for listview.

Definition at line 180 of file TTreeViewer.h.

◆ fMappedBranch

TBranch* TTreeViewer::fMappedBranch
private

Listed branch.

Definition at line 82 of file TTreeViewer.h.

◆ fMappedTree

TTree* TTreeViewer::fMappedTree
private

Listed tree.

Definition at line 81 of file TTreeViewer.h.

◆ fMenuBar

TGMenuBar* TTreeViewer::fMenuBar
private

Definition at line 110 of file TTreeViewer.h.

◆ fMenuBarHelpLayout

TGLayoutHints* TTreeViewer::fMenuBarHelpLayout
private

Definition at line 109 of file TTreeViewer.h.

◆ fMenuBarItemLayout

TGLayoutHints* TTreeViewer::fMenuBarItemLayout
private

Definition at line 108 of file TTreeViewer.h.

◆ fMenuBarLayout

TGLayoutHints* TTreeViewer::fMenuBarLayout
private

Definition at line 107 of file TTreeViewer.h.

◆ fNexpressions

Int_t TTreeViewer::fNexpressions
private

Number of expression widgets.

Definition at line 102 of file TTreeViewer.h.

◆ fOptions1D

TGPopupMenu* TTreeViewer::fOptions1D
private

Definition at line 116 of file TTreeViewer.h.

◆ fOptions2D

TGPopupMenu* TTreeViewer::fOptions2D
private

Definition at line 117 of file TTreeViewer.h.

◆ fOptionsGen

TGPopupMenu* TTreeViewer::fOptionsGen
private

Definition at line 115 of file TTreeViewer.h.

◆ fOptionsMenu

TGPopupMenu* TTreeViewer::fOptionsMenu
private

Definition at line 114 of file TTreeViewer.h.

◆ fPicDraw

const TGPicture* TTreeViewer::fPicDraw
private

Pictures for Draw buttons.

Definition at line 93 of file TTreeViewer.h.

◆ fPicRefr

const TGPicture* TTreeViewer::fPicRefr
private

Pictures for Refresh buttons ///<ia.

Definition at line 95 of file TTreeViewer.h.

◆ fPicStop

const TGPicture* TTreeViewer::fPicStop
private

Pictures for Stop buttons.

Definition at line 94 of file TTreeViewer.h.

◆ fPicX

const TGPicture* TTreeViewer::fPicX
private

Pictures for X expressions.

Definition at line 90 of file TTreeViewer.h.

◆ fPicY

const TGPicture* TTreeViewer::fPicY
private

Pictures for Y expressions.

Definition at line 91 of file TTreeViewer.h.

◆ fPicZ

const TGPicture* TTreeViewer::fPicZ
private

Pictures for Z expressions.

Definition at line 92 of file TTreeViewer.h.

◆ fProgressBar

TGHProgressBar* TTreeViewer::fProgressBar
private

Progress bar.

Definition at line 152 of file TTreeViewer.h.

◆ fREFR

TGPictureButton* TTreeViewer::fREFR
private

REFRESH button ///<ia.

Definition at line 160 of file TTreeViewer.h.

◆ fReset

TGTextButton* TTreeViewer::fReset
private

clear expression's entries

Definition at line 168 of file TTreeViewer.h.

◆ fRunMenu

TGPopupMenu* TTreeViewer::fRunMenu
private

Definition at line 113 of file TTreeViewer.h.

◆ fScanMode

Bool_t TTreeViewer::fScanMode
private

Flag activated when Scan Box is double-clicked.

Definition at line 85 of file TTreeViewer.h.

◆ fSession

TTVSession* TTreeViewer::fSession
private

Current tree-viewer session.

Definition at line 77 of file TTreeViewer.h.

◆ fSlider

TGDoubleVSlider* TTreeViewer::fSlider
private

Vertical slider to select processed tree entries;.

Definition at line 143 of file TTreeViewer.h.

◆ fSourceFile

const char* TTreeViewer::fSourceFile
private

Name of the C++ source file - default treeviewer.C.

Definition at line 79 of file TTreeViewer.h.

◆ fSPIDER

TGTextButton* TTreeViewer::fSPIDER
private

SPIDER button.

Definition at line 158 of file TTreeViewer.h.

◆ fStatusBar

TGStatusBar* TTreeViewer::fStatusBar
private

Status bar.

Definition at line 161 of file TTreeViewer.h.

◆ fSTOP

TGPictureButton* TTreeViewer::fSTOP
private

Interrupt current command (not yet)

Definition at line 159 of file TTreeViewer.h.

◆ fStopMapping

Bool_t TTreeViewer::fStopMapping
private

True if branch don't need remapping.

Definition at line 100 of file TTreeViewer.h.

◆ fTimer

TTimer* TTreeViewer::fTimer
private

Tree viewer timer.

Definition at line 98 of file TTreeViewer.h.

◆ fToolBar

TGToolBar* TTreeViewer::fToolBar
private

Definition at line 123 of file TTreeViewer.h.

◆ fTree

TTree* TTreeViewer::fTree
private

Selected tree.

Definition at line 76 of file TTreeViewer.h.

◆ fTreeHdr

TGCompositeFrame* TTreeViewer::fTreeHdr
private

Header for list tree.

Definition at line 146 of file TTreeViewer.h.

◆ fTreeIndex

Int_t TTreeViewer::fTreeIndex
private

Index of current tree in list.

Definition at line 89 of file TTreeViewer.h.

◆ fTreeList

TList* TTreeViewer::fTreeList
private

List of mapped trees.

Definition at line 88 of file TTreeViewer.h.

◆ fTreeView

TGCanvas* TTreeViewer::fTreeView
private

ListTree canvas container.

Definition at line 173 of file TTreeViewer.h.

◆ fV1

TGVerticalFrame* TTreeViewer::fV1
private

List tree mother.

Definition at line 144 of file TTreeViewer.h.

◆ fV2

TGVerticalFrame* TTreeViewer::fV2
private

List view mother.

Definition at line 145 of file TTreeViewer.h.

◆ fVarDraw

Bool_t TTreeViewer::fVarDraw
private

True if an item is double-clicked.

Definition at line 84 of file TTreeViewer.h.

◆ fWatchCursor

Cursor_t TTreeViewer::fWatchCursor
private

Watch cursor.

Definition at line 97 of file TTreeViewer.h.

◆ fWidgets

TList* TTreeViewer::fWidgets
private

List of widgets to be deleted.

Definition at line 182 of file TTreeViewer.h.

Libraries for TTreeViewer:
[legend]

The documentation for this class was generated from the following files:
TTreeViewer
A graphic user interface designed to handle ROOT trees and to take advantage of TTree class features.
Definition: TTreeViewer.h:54
TSystem::Load
virtual int Load(const char *module, const char *entry="", Bool_t system=kFALSE)
Load a shared library.
Definition: TSystem.cxx:1854
TTreeViewer::TTreeViewer
TTreeViewer(const char *treeName=0)
TTreeViewer default constructor.
Definition: TTreeViewer.cxx:317
TFile
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition: TFile.h:54
gSystem
R__EXTERN TSystem * gSystem
Definition: TSystem.h:559
file
Definition: file.py:1